How to Add Python to Windows 7 Command Prompt\'s PATH Variable?

Running Python Programs in Windows 7 Command Prompt

When trying to execute Python programs from the Command Prompt, you may encounter the error "python' is not recognized." This indicates that the Command Prompt cannot locate the Python interpreter. To resolve this, you need to add Python to your system's PATH variable.

Step-by-Step Instructions:

1. Open System Properties: Right-click on "Computer" and select "Properties."
2. Navigate to Environment Variables: Click on "Advanced System Settings" and then the "Environment Variables..." button.
3. Edit Path Variable: Under "System Variables," locate the "Path" variable and click "Edit."
4. Add Python Path: Append ;C:Python27 to the end of the variable value (adjust path for your Python version).
5. Click OK and Restart: Click "OK" on all open windows to save the changes.

Note:

• If the "Path" variable does not exist, click "New" and create it before adding Python's path.
• Restarting the Command Prompt ensures that the updated PATH variable is recognized.
• To verify that Python is now accessible, type "python" into the Command Prompt.

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